CA Civ Code Section 1997.020

As used in this chapter:

(a)

“Landlord” includes a tenant who is a sublandlord under a sublease.

(b)

“Lease” means a lease or sublease of real property for other than residential purposes, and includes modifications and other agreements affecting a lease.

(c)

“Restriction on use” means a provision in a lease that restricts the use of leased property by a tenant, whether by limiting use to a specified purpose, mandating use for a specified purpose, prohibiting use for a specified purpose, limiting or prohibiting a change in use, or otherwise.

(d)

“Tenant” includes a subtenant or assignee.